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讨论了小波理论应用于控制领域的可能性,通过对交流同步电机驱动的半闭环伺服系统进行的仿真研究证明,交流同步电机电磁转矩的二阶或三阶小波变换对末端速度的变化比电磁转矩本身更为敏感,根据电磁转矩的二阶或三阶小波变换极大模值的幅度和稠度,可以识别出速度变化的起始时间、终止时间和变化幅度。
The feasibility of using wavelet theory in the field of control is discussed. The simulation research on AC servo motor driven semi-closed loop servo system proves that the change of the second-order or third-order wavelet transform of the AC synchronous motor torque to the end speed is smaller than that of the electromagnetic The torque itself is more sensitive. According to the amplitude and consistency of the maximum modulus of the second or third order wavelet transform of the electromagnetic torque, the start time, the termination time and the change range of the speed change can be identified.